Any behavior that does not allow a person to function within or adapt to the stresses and everyday demands of life is considered to be

The answer is maladaptive. Maladaptive behaviors inhibit your ability to perform daily activities healthily. These behaviors hinder our ability to cope with stress, adapt to changes and adjust to the daily demands of life. These behaviors may give you an escape goat to avoid the stressor instead of dealing with it and find ways to face it. 

White dwarf is very hot, but also very small and that is why it may appear dim.